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Finding the Fourth Proportional to 8,677.91, 13,016.86 and 2,104.09

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Solution

The fourth proportional to 8,677.91, 13,016.86 and 2,104.09 is: 3,156.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,677.91 : 13,016.86 = 2,104.09 : x
  2. Step 2: Convert to fraction form
    8,677.91/13,016.86 = 2,104.09/x
  3. Step 3: Cross multiply
    8,677.91x = 13,016.86 × 2,104.09
  4. Step 4: Simplify right side
    8,677.91x = 27,388,695.17
  5. Step 5: Solve for x
    x = 27,388,695.17/8,677.91
  6. Step 6: Final answer
    x = 3,156.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.